if my utility company requires me to have a Windows PC to get gas or electricity, then they can supply me with a Windows PC just for that purpose
They won’t. Then what’s your plan?
What are they going to do, tell some 90 year old lady who has never touched a computer in her life that she needs to get online with an approved device to keep her light on?
No, they’ll tell her to pay via check/mail as usual.
But that’s a ridiculous argument anyway, because if there’s anyone that’s going to own an unmodified, store bought, “approved” device, it’s a 90 year old.